jetpack / modules / comment-likes.php

comment-likes.php in Jetpack – WP Security, Backup, Speed, & Growth 16.3-beta, at modules/comment-likes.php

255 lines 7.5 KB

Raw Download Zip

1	<?php //phpcs:ignore WordPress.Files.FileName.InvalidClassFileName
2	/**
3	* Module Name: Comment Likes
4	* Module Description: Enable visitors to like individual comments and boost engagement.
5	* Sort Order: 39
6	* Recommendation Order: 17
7	* First Introduced: 5.1
8	* Requires Connection: Yes
9	* Auto Activate: No
10	* Module Tags: Social
11	* Additional Search Queries: like widget, like button, like, likes
12	*
13	* @package automattic/jetpack
14	*/
15
16	use Automattic\Jetpack\Assets;
17	use Automattic\Jetpack\Sharing_Likes\Post_Likes_Switch;
18
19	if ( ! defined( 'ABSPATH' ) ) {
20	exit( 0 );
21	}
22
23	Assets::add_resource_hint( '//widgets.wp.com', 'dns-prefetch' );
24
25	require_once __DIR__ . '/likes/jetpack-likes-master-iframe.php';
26	require_once __DIR__ . '/likes/jetpack-likes-settings.php';
27
28	/**
29	* Jetpack Comment Like Class
30	*/
31	class Jetpack_Comment_Likes {
32
33	/**
34	* Jetpack_Likes_Settings object
35	*
36	* @var Jetpack_Likes_Settings
37	*/
38	public $settings;
39
40	/**
41	* Blog ID
42	*
43	* @var int
44	*/
45	public $blog_id;
46
47	/**
48	* Site home URL domain
49	*
50	* @var string
51	*/
52	public $domain;
53
54	/**
55	* Initialize comment like module
56	*/
57	public static function init() {
58	static $instance = null;
59
60	if ( ! $instance ) {
61	$instance = new Jetpack_Comment_Likes();
62	}
63
64	return $instance;
65	}
66
67	/**
68	* Construct comment like module.
69	*/
70	private function __construct() {
71	$this->settings = new Jetpack_Likes_Settings();
72	$this->blog_id = Jetpack_Options::get_option( 'id' );
73	$url_parts = wp_parse_url( home_url() );
74
75	// Abort if domain can't be determined.
76	if ( ! $url_parts \|\| ! isset( $url_parts['host'] ) ) {
77	return;
78	}
79	$this->domain = $url_parts['host'];
80
81	add_action( 'template_redirect', array( $this, 'frontend_init' ) );
82	add_action( 'admin_init', array( $this, 'admin_init' ) );
83
84	/*
85	* Comment likes are gated on the Likes settings, so when the Likes module is
86	* off this module still needs the per-post metabox that carries them.
87	*/
88	if ( ! Jetpack::is_module_active( 'likes' ) ) {
89	if ( Jetpack::is_module_active( 'sharedaddy' ) ) {
90	add_filter( 'sharing_meta_box_title', array( $this->settings, 'add_likes_to_sharing_meta_box_title' ) );
91	add_action( 'start_sharing_meta_box_content', array( $this->settings, 'meta_box_content' ) );
92	} else {
93	add_action( 'admin_init', array( $this->settings, 'add_meta_box' ) );
94	}
95
96	add_action( 'save_post', array( $this->settings, 'meta_box_save' ) );
97	add_action( 'edit_attachment', array( $this->settings, 'meta_box_save' ) );
98	}
99	}
100
101	/**
102	* Initialize admin section
103	*/
104	public function admin_init() {
105	add_filter( 'manage_edit-comments_columns', array( $this, 'add_like_count_column' ) );
106	add_action( 'manage_comments_custom_column', array( $this, 'comment_likes_edit_column' ), 10, 2 );
107	add_action( 'admin_print_styles-edit-comments.php', array( $this, 'enqueue_admin_styles_scripts' ) );
108	}
109
110	/**
111	* Displays number of comment likes in comment admin page.
112	*
113	* @param string $column_name name of the column.
114	* @param int $comment_id ID of the comment.
115	*/
116	public function comment_likes_edit_column( $column_name, $comment_id ) {
117	if ( 'comment_likes' !== $column_name ) {
118	return;
119	}
120
121	$permalink = get_permalink( get_the_ID() );
122	?>
123	<a
124	data-comment-id="<?php echo absint( $comment_id ); ?>"
125	data-blog-id="<?php echo absint( $this->blog_id ); ?>"
126	class="comment-like-count"
127	id="comment-like-count-<?php echo absint( $comment_id ); ?>"
128	href="<?php echo esc_url( $permalink ); ?>#comment-<?php echo absint( $comment_id ); ?>"
129	>
130	<span class="like-count">0</span>
131	</a>
132	<?php
133	}
134
135	/**
136	* Enqueue admin style scripts.
137	*/
138	public function enqueue_admin_styles_scripts() {
139	wp_enqueue_style( 'comment-like-count', plugins_url( 'comment-likes/admin-style.css', __FILE__ ), array(), JETPACK__VERSION );
140	wp_enqueue_script(
141	'comment-like-count',
142	Assets::get_file_url_for_environment(
143	'_inc/build/comment-likes/comment-like-count.min.js',
144	'modules/comment-likes/comment-like-count.js'
145	),
146	array( 'jquery' ),
147	JETPACK__VERSION,
148	false
149	);
150	}
151
152	/**
153	* Adds like count column to admin page.
154	*
155	* @param array $columns column of admin table.
156	*/
157	public function add_like_count_column( $columns ) {
158	$columns['comment_likes'] = '<span class="vers"></span>';
159	return $columns;
160	}
161
162	/**
163	* Initialize front end
164	*/
165	public function frontend_init() {
166	if ( class_exists( Jetpack_AMP_Support::class ) && Jetpack_AMP_Support::is_amp_request() ) {
167	return;
168	}
169
170	add_action( 'wp_enqueue_scripts', array( $this, 'load_styles_register_scripts' ) );
171	add_filter( 'comment_text', array( $this, 'comment_likes' ), 10, 2 );
172	}
173
174	/**
175	* Load styling scripts
176	*/
177	public function load_styles_register_scripts() {
178	if ( ! $this->settings->is_likes_visible() ) {
179	return;
180	}
181
182	if ( ! wp_style_is( 'open-sans', 'registered' ) ) {
183	wp_register_style( 'open-sans', 'https://fonts.googleapis.com/css?family=Open+Sans', array(), JETPACK__VERSION );
184	}
185	wp_enqueue_style( 'jetpack_likes', plugins_url( 'likes/style.css', __FILE__ ), array( 'open-sans' ), JETPACK__VERSION );
186	wp_enqueue_script( 'jetpack_likes_queuehandler', plugins_url( 'likes/queuehandler.js', __FILE__ ), array(), JETPACK__VERSION, true );
187	}
188
189	/**
190	* Display like count.
191	*
192	* @param string $content text content of the comment itself.
193	* @param object $comment comment object containing comment data.
194	*/
195	public function comment_likes( $content, $comment = null ) {
196	if ( empty( $comment ) ) {
197	return $content;
198	}
199
200	if ( ! $this->settings->is_likes_visible() ) {
201	return $content;
202	}
203
204	$comment_id = get_comment_ID();
205	if ( empty( $comment_id ) && ! empty( $comment->comment_ID ) ) {
206	$comment_id = $comment->comment_ID;
207	}
208
209	if ( empty( $content ) \|\| empty( $comment_id ) ) {
210	return $content;
211	}
212
213	if ( empty( $comment->comment_approved ) ) {
214	return $content;
215	}
216
217	// In case master iframe hasn't been loaded. This could be the case when Post Likes module is disabled,
218	// or on pages on which we have comments but post likes are disabled.
219	if ( false === has_action( 'wp_footer', 'jetpack_likes_master_iframe' ) ) {
220	add_action( 'wp_footer', 'jetpack_likes_master_iframe', 21 );
221	}
222
223	$uniqid = uniqid();
224
225	$src = sprintf( 'https://widgets.wp.com/likes/#blog_id=%1$d&comment_id=%2$d&origin=%3$s&obj_id=%1$d-%2$d-%4$s', $this->blog_id, $comment_id, $this->domain, $uniqid );
226	$name = sprintf( 'like-comment-frame-%1$d-%2$d-%3$s', $this->blog_id, $comment_id, $uniqid );
227	$wrapper = sprintf( 'like-comment-wrapper-%1$d-%2$d-%3$s', $this->blog_id, $comment_id, $uniqid );
228
229	$html = '';
230	$html .= "<div class='jetpack-comment-likes-widget-wrapper jetpack-likes-widget-unloaded' id='$wrapper' data-src='$src' data-name='$name'>";
231	$html .= "<div class='likes-widget-placeholder comment-likes-widget-placeholder comment-likes'><span class='loading'>" . esc_html__( 'Loading...', 'jetpack' ) . '</span></div>';
232	$html .= "<div class='comment-likes-widget jetpack-likes-widget comment-likes'><span class='comment-like-feedback'></span>";
233	$html .= "<span class='sd-text-color'></span><a class='sd-link-color'></a>";
234	$html .= '</div></div>';
235
236	/**
237	* Filters the Comment Likes button content.
238	*
239	* @module comment-likes
240	*
241	* @since 5.1.0
242	*
243	* @param string $html Comment Likes button content.
244	*/
245	$like_button = apply_filters( 'comment_like_button', $html );
246
247	return $content . $like_button;
248	}
249	}
250
251	// Comment likes follow the per-post Likes switch, so the block editor needs it without the Likes module.
252	Post_Likes_Switch::init();
253
254	Jetpack_Comment_Likes::init();
255